#
# a = int(input("请输入整数"))
#
# b = int(input("请输入整数"))




str1 = input("请输入整数")
str2 = input("请输入整数")

if str1.isdigit() and str2.isdigit():
    a = int(str1)
    b = int(str2)
    print(a+b)
else:
    print("老实点,小心挨打")
